Seiko Cal. 6311 - 319

This Spring Drive model from 1998 features a 42mm PVD Black case. With its 21mm lug width and 14.8mm profile, it sits comfortably on most wrists. [seikata-wm-18e58f0c609d]

Also known as: Tuna, Bullhead

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

14.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1998

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